Montgolfier brothers

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/montgolfier-brothers

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the brothers' birth and death years?Joseph-Michel (1740-1810), Jacques-Étienne (1745-1799)
2. What is the location of first public demonstration?Annonay, France
3. What did the Montgolfier brothers invent?They invented a hot air balloon called the montgolfière, made of linen and paper.
4. How did the Montgolfier brothers know that a hot balloon could lift off?They saw smoke rise from fires and realized that heated air is lighter than cool air, so a balloon filled with hot air could lift.

Aerostatics: The branch of physics that deals with gases at rest and the forces acting upon them.
Buoyancy: The upward force exerted by a fluid that opposes the weight of an immersed object.
Lighter-than-air flight: A type of flight where the aircraft achieves lift by being less dense than the surrounding air.